Hefty unit right there. Adding a lamp to a (relatively) fixed position is likely the most practical answer to this situation. A high output fog may be sufficient for low speed situations, as described. But perhaps a small "90mm " retrofit lamp would be a better choice. Would give you greater distance.
Edit- perhaps even looking at halogen options, for reduced expense, a hella 60mm low beam projector. Per the departed alaric/virgil, they were poor performing lamps, but they should have further projection than even a DD SS3 Max fog.
Interesting idea, but in my case it would be mounted very low on the bike, maybe 12-15" above the ground, so I don't think a true low beam can be pointed properly. A fog light may be the only practical solution.
You can see both my bikes - on the big cruiser I actually have the JW Speaker adaptive headlight + Denali fog lights mounted in a fixed position with a bracket that attached where the fender attaches to the fork.
On the Supermoto I will have to design a bracket that will mount where the fork protector mounts to the fork.